In Japan, Twitter is bigger than Facebook. We double checked with comScore, and it says that Japan is the only place it tracks where Twitter is beating Facebook. (It's worth noting that mobile social networks are bigger in Japan, and both Twitter and Facebook are losing on the mobile front to other social networks in Japan.)

But, as you can see in this chart, there's a good chance Twitter loses to Facebook shortly.

To see the rest of places in the world where Facebook hasn't taken over click here →